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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
<head>
<style>
.p1{
    font-family: "Times New Roman",Times,serif;
}
.p2{
    font-family: Arial,Helvetica,sans-serif;
}
.p3{
    font-family: "Lucida Console","Courier New",monospace;
}
</style>
</head>
<body>
    <p>这是一个段落，以 Times New Roman 字体显示：</p>
    <p class="p1">段落.</p>
    <p>这是一个段落，以 Arial 字体显示：</p>
    <p class="p2">段落</p>
    <p>这是一个段落，以 Lucida Console 字体显示：</p>
    <p class="p3">段</p>
</body>
</html>